Wow. Those are some pretty strong feelings about martingales.
Like most tools, in certain instances they can be effective if used correctly along side proper training. All a properly fitted standing martingale does is not allow a horse to stick his nose up in the air and avoid the bit. It SHOULD NOT EVER "strap a horse's face down to his chest". If it affects your horse's jump over the little stuff, it's too short.
I generally try to keep my tack as simple as possible unless adding something really does make a difference. I usually don't use a standing martingale because I want them to learn to carry themselves properly and once they can do that they don't need one. Plus, they are strictly prohibited in any flat class at any USEF sanctioned show and it's a total pain to have to hop off before every flat class to undo the martingale. (plus, I'm just way too forgetful to have to remember whether or not that horse has a martingale on) HOWEVER, I just got a new horse in who throws his head straight up constantly to avoid any type of rein aid he doesn't feel like doing (no, not a physical pain, purely behavior issue). So I dug my martingale out. He can't avoid me anymore. He's finally learning to accept the bit and hopefully without a week or two I'll quit using it.
My opinion is, if you horse truly needs it, then use it. If not, why bother?